Compact Make-up Air Unit
Specification and Installation Instructions
Compact Make-Up Air Unit-210802
Page | 1
Description
The Neptronic Compact Make-up Air Unit (CMU) is designed to pull in
fresh, tempered air from outside a building in order to replace existing air
and continuously provide comfortable ventilation throughout the building.
Equipped with intelligent control strategies and the patented Neptronic
EAS (Electronic Air Flow Sensors), the CMU maximizes efficiency and
optimizes indoor air quality.
The advanced control strategies and optional BACnet MS/TP and Modbus
RTU communication modules make it the ideal product for integration with
the automation system of intelligent buildings, by enhancing user comfort
and reliability.
CMU Series
Features
•
Air flow range of 50 to 750CFM (85 to 1274m
3
/h)
•
Sizes from 6” to 12” (152 to 305mm)
•
Wide power range (1kW to 20kW)
•
Voltage from 120V/1ph to 600V/3ph
•
ΔT between 22°F (11°C) and 86°F (45°C)
•
Multiple I/O support for advanced control strategies
•
Patented Neptronic EAS (Electronic Air Flow Sensors)
•
Ease of operation and maintenance, and enhanced
comfort with Neptronic TDF digital room sensors
▪
Display supply temperature
▪
Configure CFM and temperature setpoints
▪
Monitor alarms
•
ECM and AC fan strategies
•
Intelligent control strategies
▪
Indoor air quality applications with integrated
temperature, humidity, CO
2
and occupancy sensor
▪
Dehumidification logic
▪
Interlock with extraction fans
▪
Outside air sensors prime heater coils for fast
response and comfort
▪
Static pressure PID algorithms, control of fresh air
and return air
•
Integrate with BMS and intelligent buildings via BACnet
MS/TP or Modbus RTU
•
Safety interlocks and thermal cutouts
•
Schedule support
Network Communication
•
BACnet MS/TP or Modbus communication (selectable
via DIP switch)
•
Select MAC address via DIP switch or via network
•
BMS integration via BACnet MS/TP or Modbus
•
Multiple BACnet/Modbus points to propel you towards
the Internet of Things (IoT)
•
Remote monitoring (status, alarms, diagnostics, and
trending)
•
Real-time feedback of output capacity
•
Provides real-time temperature measures and power
consumption data
BACnet MS/TP®
•
MS/TP @ 9600, 19200, 38400, 57600 or 76800 bps
•
Automatically assigns device instance
•
Automatic Baud Rate Detection
Modbus
•
Modbus @ 9600, 19200, 38400, 57600 or 76800 bps
•
RTU Slave, 8 bits (configurable parity and stop bits)
•
Connects to any Modbus master
Specifications
Technical data
CMU Series
Maximum outlet air temperature
200˚F (93˚C)
Maximum operating outlet temperature
95˚F (35˚C)
Inlet bushing
2 knockouts of
1 ⅜’’ (35mm) or 1 ¾” (44.5mm)
Control signal
Modulating or Vernier control (select models)
Fan
AC or ECM fan
Air flow direction
Horizontal with reversible installation
Voltage, Current, Power, and Minimum air flow
See name plate
Certification
4011008
Complies to standards UL 60335-1 & UL 60335-2-40,
CSA C22.2 No. 60335-1 & CSA C22.2 No. 60335-2-40
Summary of Contents for CMU Series
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